58 lines
1.9 KiB
Java
58 lines
1.9 KiB
Java
/*
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* Title: CloudSim Toolkit
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* Description: CloudSim (Cloud Simulation) Toolkit for Modeling and Simulation of Clouds
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* Licence: GPL - http://www.gnu.org/copyleft/gpl.html
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*
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* Copyright (c) 2009-2012, The University of Melbourne, Australia
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*/
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package org.cloudbus.cloudsim.power.models;
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/**
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* The abstract class of power models created based on data from SPECpower benchmark:
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* http://www.spec.org/power_ssj2008/
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*
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* If you are using any algorithms, policies or workload included in the power package, please cite
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* the following paper:
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*
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* Anton Beloglazov, and Rajkumar Buyya, "Optimal Online Deterministic Algorithms and Adaptive
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* Heuristics for Energy and Performance Efficient Dynamic Consolidation of Virtual Machines in
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* Cloud Data Centers", Concurrency and Computation: Practice and Experience (CCPE), Volume 24,
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* Issue 13, Pages: 1397-1420, John Wiley & Sons, Ltd, New York, USA, 2012
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*
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* @author Anton Beloglazov
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* @since CloudSim Toolkit 3.0
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*/
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public abstract class PowerModelSpecPower implements PowerModel {
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/*
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* (non-Javadoc)
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* @see org.cloudbus.cloudsim.power.models.PowerModel#getPower(double)
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*/
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@Override
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public double getPower(double utilization) throws IllegalArgumentException {
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if (utilization < 0 || utilization > 1) {
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throw new IllegalArgumentException("Utilization value must be between 0 and 1");
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}
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if (utilization % 0.1 == 0) {
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return getPowerData((int) (utilization * 10));
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}
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int utilization1 = (int) Math.floor(utilization * 10);
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int utilization2 = (int) Math.ceil(utilization * 10);
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double power1 = getPowerData(utilization1);
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double power2 = getPowerData(utilization2);
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double delta = (power2 - power1) / 10;
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double power = power1 + delta * (utilization - (double) utilization1 / 10) * 100;
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return power;
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}
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/**
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* Gets the power data.
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*
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* @param index the index
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* @return the power data
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*/
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protected abstract double getPowerData(int index);
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}
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